my computer is custom built for gaming, never had any problem with lag on even the newest tripple A games on ultra settings, never broke a sweat. now it lags about every 2 seconds on every game or video played. iv been looking everywhere online and have tried everything short of installing a new os. all drivers are up to date, temp staying in the normal range, no virus or malware, cccleaned, ran cpu-z and gpu-z and everything is running fine. internet connection is blazing fast and im running a GeForce GTX 560 Ti with an AMD FX-8120 (8core) with 16GB of ram. im losing my mind here, please help. Edit: iv also cleaned the case and all fans of dust, as well as adjusted my fan speeds and temp thresholds even though i stay within 50-60 C.